Why no glow in the dark nocks?

[Wheels]

I wonder why no company has come out with non battery powered glow in the dark nocks? I would think they could incorporate phosphors into the plastic when they mold the nocks. I’m sure it’s been tried and maybe was a failure, but would be cool even if they glowed for 30 minutes or so after dark.

 

[Maxhunter]

I had a friend that used really bright fluorescent fletching elk one season they kept seeing it when he was drawing or in the late evening or morning. I’m not sure I’d want nocks you could see early morning or late evening especially spot and stalking.